McIntosh C35 - SERVICE, Руководство пользователя

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switching contacts which allow the signal to pass
through them when nothing is plugged into the
jacks. When an external processor is used, the
program is routed to the external processor from
the EXTERNAL PROCESSOR TO jack and back by
the EXTERNAL PROCESSOR FROM jack.
WHEN AN EXTERNAL PROCESSOR IS USED, IT
MUST BE TURNED ON FOR THE PROGRAM TO BE
HEARD THROUGH THE SYSTEM.
The third and fourth fields of connectors are
marked:
AUDIO OUTPUTS and BALANCED OUTPUTS
10. VCR 1/TAPE 1 and VCR 2/TAPE 2
To record VCR audio or audio tape, connect a
cable from the Left VCR 1/TAPE 1 OUTPUT to the
left high-level input of the recorder. Connect a
cable from the Right VCR I/TAPE 1 OUTPUT to the
right input of the recorder. Connect a second
recorder in the same manner to the VCR 2/TAPE 2
OUTPUT.
11. MAIN:
Connect a cable from the left C 35 MAIN
OUTPUT jack to the left power amplifier input
jack.
Connect a cable from the right MAIN OUTPUT
jack to the right power amplifier input jack.
12. SWITCHED 1 and 2:
Two additional stereo power amplifiers may be
connected to the AUDIO OUTPUT SWITCHED 1
and 2 jacks. Audio output signal is supplied to
these jacks only when the front panel button
SPEAKER 1 and/or 2 buttons are pressed. This
arrangement is useful for systems where separate
amplifiers and loudspeakers are used at remote
locations.
Additional amplifiers can serve remote areas such
as selected living areas, workshop, or outdoor
recreational facilities. Other devices can be
controlled such as a rear channel reverberation unit.
13. BALANCED OUTPUTS
Modern technology has made it possible to
build preamplifiers and power amplifiers with the
high signal-to-noise ratio necessary to reproduce
the sound quality present on compact discs.
Interconnecting cables can pick up electrical
interference from other equipment or applicances.
The balanced outputs on the C 35 provide a
minimum of 40 dB more protection against such
"common mode" noise pick-up. Use 2 conductor
shielded cables with XLR type connectors to con-
nect between the preamplifier and the power
amplifier.
When using 2 conductor shielded cables with
XLR type connectors, connect the BALANCED
OUTPUT LEFT of the preamplifier into the left XLR
connector on the power amplifier. Connect the
BALANCED OUTPUT RIGHT on the preamplifier to
power amplifier right XLR connector.
Pin configuration of the XLR connectors is:
PIN 1: Shield ground
PIN 2: + OUT
PIN 3: - OUT.
14. AC POWER:
Plug the preamplifier AC power cord into a 120
volt 60 Hz wall outlet. The plug blades are
polarized so be certain the plug is fully inserted in
the outlet to prevent blade exposure.
CAUTION: TO PREVENT ELECTRIC SHOCK, DO
NOT USE THE (POLARIZED) PLUG ON THIS UNIT
WITH AN EXTENSION CORD, RECEPTACLE, OR
OTHER OUTLET UNLESS THE BLADES CAN BE
FULLY INSERTED TO PREVENT BLADE EXPOSURE.
Two types of AC power outlets are provided on
the back panel of the C 35. One is red, the rest
are black.
The red outlet is on at all times and is used with
accessories that have their own power switches.
For example, a VCR plugged into this outlet will
be able to record TV programs when the main
audio system is turned off.
The black outlets are switched on or off when
the C 35 is turned on or off. Use these to provide
AC power to amplifiers, CD players, or other
accessories. The power capacity of all the outlets,
totalled, is 1500 watts. For power consumption
above 1500 watts, it is necessary to add a
Mclntosh SCR 3 (SPEAKER CONTROL RELAY). The
SCR 3 has two AC power outlets that provide
additional capacity of 1800 watts switched on or
off by the C 35. Use these outlets to supply AC
power to amplifiers or other components
whenever the total load to be switched exceeds
the C 35 rating of 1500 watts.
15. SCR (optional accessory):
The SPEAKER CONTROL RELAY (SCR 3) is
designed to provide both AC outlet switching and
speaker switching.
The SCR 3 has two AC power outlets that
HOW TO CONNECT 7